varnish caching with jsessionid being set

Guillaume Quintard guillaume at varnish-software.com
Wed Mar 22 16:28:39 CET 2017


Sure, you can override them:

set vcl_backend_response {
    set beresp.ttl = 5m;
}

-- 
Guillaume Quintard

On Tue, Mar 21, 2017 at 4:11 PM, Jim Louis <jlouis at peoplenetonline.com>
wrote:

> Dridi,
>
> Supposedly, nginx has the ability to ignore the caching headers. Does
> Varnish provide a similar mechanism?
>
> Thanks,
> Jim
>
> On Mon, Mar 20, 2017 at 3:09 AM, Dridi Boukelmoune <dridi at varni.sh> wrote:
>
>> On Fri, Mar 17, 2017 at 8:46 PM, Jim Louis <jlouis at peoplenetonline.com>
>> wrote:
>> >
>> > Dridi,
>> >
>> > I must not be understanding your example on [2] as I'm still getting
>> everything passed.
>>
>> Hi Jim,
>>
>> Thanks for letting me know, I will try to clarify this part.
>>
>> > The BereqHeader in varnishlog -b shows:
>> > BereqHeader    Cookie: JSESSIONID=4A1158EB11C9E93D6AD2A101BB9FA204;
>> pfmhelp=1; _ga=GA1.2.1694534677.1489779146;
>> TrackJS=f2465051-cb66-4cfa-8a47-5c7a5d07aab4; navigation=520533110%7C4130
>> >
>> > and I'm seeing:
>> > BerespHeader   Cache-Control: no-cache, no-store, must-revalidate
>> > BerespHeader   Pragma: no-cache
>>
>> The backend is telling Varnish, and ultimately the client, that the
>> response cannot be cached. Depending on your version of Varnish
>> it will indeed result in subsequent passed transaction.
>>
>> > Also, was there a part 2 to that blog?
>>
>> Part 2 is written, but still an early draft so not published yet.
>>
>> Cheers,
>> Dridi
>>
>
>
>
> --
> *James Louis*
> *Lead Systems Engineer*
>
>
>
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